I n s t a l l the pull-back
the tubing free of the lower end of each tube.
it bottoms.
Push both tubes up through the top holes of the
spring and spring shield around the
rack assembly and out of the rack. Discard
u p p e r end of the pump chamber.
damaged tubes
Screw the packing gland retainer into
b. Installation. Insert the new tubes in the
the low pressure plunger about three
I n s e r t the high pressure
top or upper holes provided in the rack assem-
turns.
bly. Use extreme care not to break the plastic
plunger into the low pressure plunger.
tubes. Attach a length of rubber tubing to the
Screw the packing gland retainer in
lower end of each tube that protrudes through
the low pressure plunger until it bot-
the lower hole in the rack assembly by working
toms. Insert the pin through the holes
the hose over the end of the tubes. Fit the
in the pump lever socket and link.
other end of the rubber tubing over the tank
Install the cotter pin to fasten the pin
adapter.
in place.
25. Replacing Defective Pressure Gage
24. Replacing Defective Test Stand
Assembly Components
a. Removal. Remove the pressure gage (1)
by unscrewing it from the bleeder valve (19).
a. Removal. To remove the large tube ((7),
b. Installation. Apply pipe thread-sealing
fig. 1) and small tube (10), loosen the rubber
compound to the threads of the new pressure
tubing (4) that connects the tubes to the pump
tank adapter. Drain the test fluid out of both
gage. Screw the pressure gage into the bleeder
valve. Draw the connection up snug.
tubes. Remove the rubber tubing by working
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